package com.cc.exam;

import java.util.Arrays;

public class exam1 {
    public static void main(String[] args) {
        int i =1;
        String str = "hello";
        Integer num = 2;
        int[] arr = {1,2,3,4,5};
        MyData my = new MyData();

        change(i,str,num,arr,my);

        System.out.println("i = "+i);
        System.out.println("str = "+str);
        System.out.println("num = "+num);
        System.out.println("arr = "+ Arrays.toString(arr));
        System.out.println("my = "+my.a);
    }

    public static void change(int j,String s,Integer n,int[] a,MyData m) {
        j += 1;
        s += "world";
        n += 1;
        a[0]+= 1;
        m.a += 1;

    }


}
class MyData{
    int a = 10;
}